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                <h1 class="title-article">Windows7下Python3.7和Python2.7的共存和切换</h1>
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                    <span class="article-type type-1 float-left">原创</span>                                                                                                                                            <a class="follow-nickName" href="https://me.csdn.net/qq_41630218" target="_blank" rel="noopener">亭有枇杷树</a>
                    <span class="time">最后发布于2019-08-19 10:52:09                    </span>
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                                            <p><strong>一、</strong>首先安装Python环境：<a href="https://www.python.org/downloads/" rel="nofollow">https://www.python.org/downloads/</a></p>

<p><strong>二、</strong>安装Python3和Python2</p>

<p><strong>三、</strong>然后进入Python2.7（本人用的Python2.7）文件夹下将python.exe文件名改为python27.exe</p>

<p><img alt="" class="has" height="264" src="https://img-blog.csdnimg.cn/2019081910471323.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQxNjMwMjE4,size_16,color_FFFFFF,t_70" width="486" /></p>

<p><strong>四、</strong>添加环境变量</p>

<p>H:\python\;</p>

<p>H:\python\Scripts\;</p>

<p>H:\python27\;</p>

<p>H:\python27\Scripts\;</p>

<p>四个环境变量分别是python3、python3的pip和python2.7及pip的。</p>

<p>最后就可以cmd进入命令：</p>

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